In men and women sexual arousal culminates in orgasm, with female orgasm solely from sexual intercourse often regarded as a unique feature of human sexuality. However, orgasm from sexual intercourse occurs more reliably in men than in women, likely reflecting the different types of physical stimulation men and women require for orgasm. In men, orgasms are under strong selective pressure as orga...

According to a 1991 study of sexual behavior based on a random sample of heterosexual undergraduates at a Midwestern university, 80% of the males and 73% of the females had experienced vaginal or anal intercourse. The average age at first vaginal intercourse was 17.2 years for both sexes. Seventeen percent of the sexually experienced males and 18% of the sexually experienced females had engaged...

In spite of a variety of broad-based interventions, rates of adolescent sexual intercourse remain high. Using data from a large longitudinal study, this paper provides empirical evidence of Canadian adolescent sexual activity rates by age and gender. The incidence of first sexual intercourse among those 13-15 years was higher among males than females; by ages 16-17 years, rates were the same fo...

This study examined the relationship between perceived socialization from parents, school, peers, and media and adolescents’ cognitive susceptibility to initiating sexual intercourse and transition to intercourse 2 years later. Baseline and follow-up in-home Audio-Computer Assisted Self Interview surveys were completed by 854 Black and White male and female adolescents who, at baseline, were 12...

We integrated findings from 35 recent, longitudinal studies of the onset of heterosexual intercourse. Correlates of adolescent sexual intercourse onset, whether in early (before age 16) or middle (ages 16 to 18) adolescence, included living with other than two biological parents, being less monitoring by parents, having more advanced physical maturity and more involvement in dating behavior, an...

INTRODUCTION We have previously documented the relationships between stress and depression symptoms and adolescent women's nonuse and misuse of condoms and other contraceptive methods and on their unintended pregnancy rates. AIM Here, we examine relationships between mental health symptoms and another understudied adolescent reproductive health behavior-frequency of sexual intercourse. MAIN...

CONTEXT While making condoms available in high schools has provoked much debate, evidence on the actual effects of such programs on students' attitudes and behavior is sparse. METHODS Prior to implementation of a condom availability program in a Los Angeles County high school, 1,945 students in grades 9-12 (98% of eligible students) completed a self-administered anonymous survey on their sexu...

Die gesundheitspolitische und gesellschaftspolitische Bedeutung der Neurorehabilitation wurde in der BRD früh erkannt, was flächendeckend zu – auch im internationalen Vergleich – besonders umfangreichen Neurorehabilitationsstrukturen führte. Dies geschah zunächst außerhalb des Krankenhausbehandlungssektors mit der Etablierung indikationsspezifischer Rehabilitationseinrichtungen, im Weiteren abe...